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Debian DLA-1265-1 : krb5 security update
medium Nessus Plugin ID 106536
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Synopsis
The remote Debian host is missing a security update.Description
Kerberos, a system for authenticating users and services on a network, was affected by several vulnerabilities. The Common Vulnerabilities and Exposures project identifies the following issues.CVE-2013-1418 Kerberos allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request when multiple realms are configured.
CVE-2014-5351 Kerberos sends old keys in a response to a -randkey
-keepold request, which allows remote authenticated users to forge tickets by leveraging administrative access.
CVE-2014-5353 When the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy.
CVE-2014-5355 Kerberos expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character,
CVE-2016-3119 Kerberos allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request to modify a principal.
CVE-2016-3120 Kerberos allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
For Debian 7 'Wheezy', these problems have been fixed in version 1.10.1+dfsg-5+deb7u9.
We recommend that you upgrade your krb5 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected packages.See Also
https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html
Plugin Details
Severity: Medium
ID: 106536
File Name: debian_DLA-1265.nasl
Version: 3.6
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 2/1/2018
Updated: 9/24/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:krb5-multidev, p-cpe:/a:debian:debian_linux:krb5-pkinit, p-cpe:/a:debian:debian_linux:libkdb5-6, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:krb5-kdc, p-cpe:/a:debian:debian_linux:krb5-admin-server, p-cpe:/a:debian:debian_linux:krb5-doc, p-cpe:/a:debian:debian_linux:libkrb5-dev, p-cpe:/a:debian:debian_linux:krb5-gss-samples, p-cpe:/a:debian:debian_linux:libkadm5srv-mit8, p-cpe:/a:debian:debian_linux:krb5-locales, p-cpe:/a:debian:debian_linux:libkadm5clnt-mit8, p-cpe:/a:debian:debian_linux:krb5-user, p-cpe:/a:debian:debian_linux:krb5-kdc-ldap
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 1/31/2018
Reference Information
CVE: CVE-2013-1418, CVE-2014-5351, CVE-2014-5353, CVE-2014-5355, CVE-2016-3119, CVE-2016-3120
BID: 63555, 70380, 71679, 74042
IAVB: 2016-B-0115-S